Create README.md

docker/README.md

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+# Containerized Examples
+
+These example containers show how to do UI app streaming within Docker containers using KasmVNC.
+
+## Doom
+
+What better way to demonstrait containerized app streaming then to stream Doom! The included Dockerfile.ubuntu18.doom file and the source code have everything you need to hit the ground running.
+
+### Building
+```sh
+sudo docker build -t kasm/doom -f Dockerfile.ubuntu18.doom .
+```
+
+### Running
+```sh
+sudo docker run -it -p 8443:8443 --rm -e "VNC_USER=matt" -e "VNC_PW=password123"  kasm/doom:latest
+```
+
+The environmental variables VNC_USER and VNC_PW set the username and password respectively. The VNC_PW is unset during container startup. 
+
+Now navigate to https://<ip-address>:8443/vnc.html